Home / 665,280,656.70-997,920,985.05-276,974,432.70

Finding the Fourth Proportional to 665,280,656.70, 997,920,985.05 and 276,974,432.70

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Solution

The fourth proportional to 665,280,656.70, 997,920,985.05 and 276,974,432.70 is: 415,461,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,280,656.70 : 997,920,985.05 = 276,974,432.70 : x
  2. Step 2: Convert to fraction form
    665,280,656.70/997,920,985.05 = 276,974,432.70/x
  3. Step 3: Cross multiply
    665,280,656.70x = 997,920,985.05 × 276,974,432.70
  4. Step 4: Simplify right side
    665,280,656.70x = 276,398,598,713,648,896
  5. Step 5: Solve for x
    x = 276,398,598,713,648,896/665,280,656.70
  6. Step 6: Final answer
    x = 415,461,649.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.